“You know something, Scout? I’ve got it all figured out, now. I’ve thought about it a lot lately and I’ve got it figured out. There’s four kinds of folks in the world. There’s the ordinary kind like us and the neighbors, there’s the kind like the Cunninghams out in the woods, the kind like the Ewells down at the dump, and the Negroes.”

– Harper Lee

To Kill a Mockingbird, Chapter 23. Troubled by the unfairness of the Tom Robinson trial, Jem tries to make sense of the divisions between people in Maycomb county. So he divides them into four different groups based on money and race.